Abstract
Most studies of amphibian communities are restricted to aquatic environments, which precludes sound descriptions of changes in composition throughout entire habitats. Moreover, few works focus on the environmental processes that shape the composition of these communities, particularly in tropical ecosystems. In this study, we investigated which environmental variables were able to predict the main changes in anuran community composition in a shrub-to-forest Restinga on the northeastern coastline of Bahia State, Brazil. In 30 plots (60 × 25 m) along a continuous Restinga area, we determined, over two consecutive rainy seasons, the abundances of anuran species and 20 primary environmental variables. We represented the main environmental gradients of the Restinga using the first axes derived from a principal component analysis (PCA) of the matrix of environmental variables. We represented the main changes in community composition using a synthetic axis built by applying the nonmetric multidimensional scaling...
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